<?php
//设定字符集
header(`Content-type:text/html;charset=utf-8`);
//定义一个常量，保存所有商品的折扣
const DISCOUNT =0.8;
//定义变量，保存所有商品的名称
$fruitl='香蕉';
$fruit2='苹果';
$fruit3='橘子';
//对应商品的购买数量（斤）
$fruit1_num=2;
$fruit2_num=3;
$fruit3_num=3;
//
$fruit1_price=7.99;
$fruit2_price=6.89;
$fruit3_price=3.99;
//
$fruit1_total=$fruit1_num*$fruit1_price;
$fruit2_total=$fruit2_num*$fruit2_price;
$fruit3_total=$fruit3_num*$fruit3_price;
//
$total=($fruit1_total+$fruit2_total+$fruit3_total)*DISCOUNT;
//
$str="<table>";
$str .="<tr><td>商品名称</td><td>购买数量(斤）</td><td>商品价格</td></tr>";
$str .="<tr><td>$fruit1</td> <td>$fruit1_num</td> <td>$fruit1_price</td>";
$str .="<tr><td>$fruit2</td> <td>$fruit2_num</td> <td>$fruit2_price</td>";
$str .="<tr><td>$fruit3</td> <td>$fruit3_num</td> <td>$fruit3_price</td>";
$str .="<tr><td colsplan='3'>商品折扣：<span>".DISCOUNT."</span></td></tr>";
$str .="<tr><td colsplan='3'>打折后购买总价格：{$total}元</td></tr>";
$str .="</table>";
//
echo $str;
?>
?>
?>
